{
  "bibcode": "2010GCN.11089....1O",
  "body": "John O'Meara (Saint Michael's College), Hsiao-Wen Chen (UChicago), Jason \nX. Prochaska (UC Santa Cruz)  report on behalf of a larger collaboration:\n\n\"We observed the afterglow of GRB100814A reported by Schaefer et al. (GCN\n11086) and confirmed by Gronwall et al. (GCN 11088) using the MagE\nechellette spectrograph on the Magellan Clay Telescope.  The observations\nstarted at UT 04:46 on August 14, 2010, ~ one hour after the inital \ntrigger.  We obtained a 900s exposure.  Our preliminary reduction shows \nthat the afterglow spectrum displays absorption transitions due to AlIII, \nFeII, and MgII at redshift z=1.44, which we tentatively identify as the \nhost redsdhift of the GRB.\n\nFurther analysis is underway.\n\nThis message may be cited.\"",
  "circularId": 11089,
  "createdOn": 1281762590000,
  "email": "hchen@oddjob.uchicago.edu",
  "subject": "GRB100814A: Magellan Echellette Observations",
  "submitter": "Hsiao-Wen Chen at U Chicago  <hchen@oddjob.uchicago.edu>",
  "eventId": "GRB 100814A"
}